A cardiac cycle consists of systolic (contraction) and diastolic (relaxation and filling) phases that are linked closely together for optimal function of the heart. Normal diastolic function allows adequate filling of the heart without an excessive increase in diastolic filling pressure both in the resting state and with stress or exertion.1 The diastolic phase is remarkably well designed to en...

Background: Pulse pressure has recently been considered as a predictor of coronary heart disease. The difference between systolic and diastolic blood pressure is called pulse pressure. Various factors including increased age, vascular stiffness, stenosis, and hypertension are associated with pulse pressure. The present study, therefore, aimed to investigate the relationship between some cardiov...

The prevalence of hypertension is greater for blacks than whites. Whether black children have higher blood pressure than white children is less clear. We investigated this issue through a prospective longitudinal assessment of blood pressure in 345 white children and 164 black children. Each child had his or her blood pressure measured every 6 months for 2 to 5.5 years. The means for systolic a...

conclusions according to the results of this study, it seems that shift work can be considered a risk factor for high blood pressure changes. it is recommended that workers who are working in shifts are more at risk and need more supervision. background several factors affect the emergence of high blood pressure, among which include environmental and occupational factors. shift work is currentl...

background: obesity is a significant risk factor for metabolic disorders including increase in blood pressure. body mass index (bmi), waist circumference (wc) and waist/hip ratio (whr) are simple and effective indicators of obe­sity. the objectives of this study were to examine the relationships between obesity anthropometric indicators and hy­pertension and to identify the best anthropometric ...

Starr's formula for deriving stroke volume from pulse pressure, diastolic pressure, and age has been tested experimentally in a group of miscellaneous hospital patients. Nearly simultaneous measurements of stroke volume by the direct Fick method and of brachial arterial pressure by direct puncture were analyzed. The measured stroke volume frequently differed considerably from the values calcula...

Blood pressure variability represents an independent risk factor for cardiovascular diseases. To detect possible blood pressure variability changes from fertile to menopausal status, we enrolled consecutively 219 women: 104 fertile women (46.6 +/- 3.4 years) and 115 menopausal women (53.9 +/- 3.98 years). We evaluated for each patient the body mass index (BMI), 24 h, daytime, night-time systoli...

BACKGROUND In patients with type 2 diabetes, the prognostic impact of an orthostatic rise in blood pressure is not known. Therefore, the aim of this study was to determine the prognostic implications of the diastolic orthostatic blood pressure response in a cohort of patients with type 2 diabetes. We also evaluated associations between different orthostatic blood pressure responses and markers ...